3.0 Turbo Reliability

[~Rich~]

I'm more than happy with my 2.7 TDV6 but a time will come when I will upgrade to another vehicle.
After reading and seeing the apparent issues with twin turbo engines and discussing them with my mechanic I'm wondering a couple of points:

1: The issues of the secondary turbo seem to occur after servicing, could it in fact be that the engines had been overfilled with oil? This would mean the drain tubes from the turbos get sealed off by the higher oil level and therefore the pressure increases and seals fail. Some vehicles have had no issues perhaps to correct oil level.

2: What will happen 10yrs and longer down the track with all these difficult to access turbo vehicles? People will not find it financially viable to repair these vehicles. This no doubt will dramatically affect the resale value of the model(s)

Cheers Rich

[boolyb]

Hey mate, latest fix for the 3.0 tdv6 turbo issue is to replace the oil drain pipe from the secondary turbo, the pipe being fitted is the same as the one fitted to the 3.0 jag engine, the difference being the jag turbo drains to the side of the crankcase, where as the original lr design was to drain to the sump, where a scavenge system was used, Incorporating the engine vac pump system.
This appears to be curing the smoke issues and oil by-passing the turbo seals.
We have tested a d4 with an oil pressure gauge fitted on the turbo oil supply pipe and on the engine main gallery. I can confirm the turbo is supplied with adequate oil pressure even when tilted to extreme angles in all directions.
Jags have always had this system and they have never had an issue with smoking or turbo fails. Hope this helps, don't know when this will be fitted to vehicles coming of the line, real pity this issue has blighted the 3.0 tdv6 as it really is a fantastic engine and transforms the d4 and rrs.
Watch this space I guess!!

[Graeme]

What concerns me is that my 3.0 doesn't get worked hard enough to keep all the moving bits moving. My TD5 worked hard enough all the time to prevent its wastegate from siezing but the 3.0 has so much torque down low that it rarely gets to try. Every so often I give it some boot but in no time at all its at the speed limit without getting any exercise.

[Disco4SE]

Hey mate, latest fix for the 3.0 tdv6 turbo issue is to replace the oil drain pipe from the secondary turbo, the pipe being fitted is the same as the one fitted to the 3.0 jag engine, the difference being the jag turbo drains to the side of the crankcase, where as the original lr design was to drain to the sump, where a scavenge system was used, Incorporating the engine vac pump system.
This appears to be curing the smoke issues and oil by-passing the turbo seals.
We have tested a d4 with an oil pressure gauge fitted on the turbo oil supply pipe and on the engine main gallery. I can confirm the turbo is supplied with adequate oil pressure even when tilted to extreme angles in all directions.
Jags have always had this system and they have never had an issue with smoking or turbo fails. Hope this helps, don't know when this will be fitted to vehicles coming of the line, real pity this issue has blighted the 3.0 tdv6 as it really is a fantastic engine and transforms the d4 and rrs.
Watch this space I guess!!

Hi Sneigy,
What are your thoughts on this???

Cheers, Craig

[roamer]

Jags have always had this system and they have never had an issue with smoking or turbo fails. !!

I think you may find the oil drain pipe was a fix for early 3lt Jags blowing smoke


Ken

[Sleeping Wood]

Just bumping this post up.
Does anyone know what model year the modified pipe (pipe into crankcase) was incorporated into 3.0 liter motor? And was this modified pipe to fix the smoke issue a recall earlier model years? (or don't LR do recalls)

[Graeme]

No recall on my late 2009 3.0.
I haven't seen white smoke since the secondary turbo was replaced ages ago but today after planting the foot whilst barely rolling I saw quite a puff of white.

[MartyJB]

I've had the turbo and the oil drain line replaced. I'm now only seeing smoke occasionally and nowhere near the extent previously. In fact I can't reliably create the smoke so wasn't sure what response I'd get from dealer. It has been back to the dealer who said there is yet another fix (technical bulletin) and am now waiting on parts from the UK, but I'm not sure yet what is being replaced, I'll let you know soon...
The positive in all this is I have never been fobbed off by the dealer.

[Rollin over]

I told LR Newcastle about my 2010 HSE 3.0 blowing some smoke, and they informed me there was a campaign for the problem which turned out to be a hose, which was put on under warranty. Only way we knew it was blowing smoke sometimes was when the wife was following me back with the van on.

Cheers Glenn

PS Happy Easter

[Disco4_tech]

No need to worry about parts "seizing". Even though the 3.0L has a secondary turbo, you will find all parts in the forced induction system will get a work out every time you drive it. Even if you drive like a grandma, the secondary turbo will still be working.